I'm not afraid of flying by any means but this looks quite terrifying. I wonder what was going on. Let's suggest it's an imbalance in one of the rotating parts, would shutting off that engine kill the vibrations, or will the air flow still force the rotors to turn, thus keep inducing the vibrations?

Are you saying that a fan blade fracture and consequent engine shut down is somehow less serious in a Boeing 767 or 777 than in an A330? If that actually is what you're saying it is, with all due respect, absurd.

If this were a Boeing or a Douglas design I wouldn't be worried in the least. An Airbus.... not so much.

What a strange thing to say, so are you saying Boeing and old, nae ancient, technology Douglas aircraft, in general, are far safer than Airbus? I find this Airbus/Boeing slagging match on websites and forums absolutely bizarre.

Like, an engine 'running' at a relatively low RPM due to the airflow? I still think it's plausible. The imbalance due to some missing turbine blades or even an entire fan blade (it's not like they weigh absolutely nothing) would cause a lot of vibrations even at low speeds. Try throwing a brick in an idling tumble dryer. They frickin' obliterate themselves. https://www.youtube.com/watch?v=vROdVsU_K80

Quoteairlinerart1 :
What a strange thing to say, so are you saying Boeing and old, nae ancient, technology Douglas aircraft, in general, are far safer than Airbus? I find this Airbus/Boeing slagging match on websites and forums absolutely bizarre.

And, under the circumstances of an accident that could have turned deadly, I find the "my favorite manufacturer makes better airplanes than the other guy" talk in seriously questionable (if not poor) taste. I'm much more interested in what the investigation turns up, and how it can be prevented from happening again.